CVE-2023-53335

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no separate victim action is required at exploit time.\nS:U - The resulting kernel oops/panic stays within the host kernel security authority and does not cross a VM, IOMMU, or sandbox boundary.\nC:N - This is a pure NULL pointer dereference of a failed get_ep_from_tid() result (address 0), with no out-of-bounds read, UAF of a dangling object, or other disclosure primitive.\nI:N - The fault is a NULL read with no memory write, type confusion, or control-flow hijack path beyond the ensuing oops.\nA:H - Dereferencing the NULL ep (ep->hwtid / ep->snd_seq) causes a kernel oops/panic in the iw_cxgb4 workqueue context, which a remote peer can trigger repeatedly for full denial of service."}]}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/infiniband/hw/cxgb4/cm.c"], "versions": [{"version": "944661dd97f4f257cd914fffec7eb80832ff9141", "lessThan": "9dca64042d855a24b0bd81ce242e5dc7e939f6eb", "status": "affected", "versionType": "git"}, {"version": "944661dd97f4f257cd914fffec7eb80832ff9141", "lessThan": "2cfc00e974d75a3aa8155f2660f57d342e1f67ca", "status": "affected", "versionType": "git"}, {"version": "944661dd97f4f257cd914fffec7eb80832ff9141", "lessThan": "9ddc77eefb2a567b705c3c86ab2ddabe43cadf1b", "status": "affected", "versionType": "git"}, {"version": "944661dd97f4f257cd914fffec7eb80832ff9141", "lessThan": "283861a4c52c1ea4df3dd1b6fc75a50796ce3524", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/infiniband/hw/cxgb4/cm.c"], "versions": [{"version": "4.7", "status": "affected"}, {"version": "0", "lessThan": "4.7", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.99", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.16", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.2.3", "lessThanOrEqual": "6.2.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.3", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.7", "versionEndExcluding": "5.15.99"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.7", "versionEndExcluding": "6.1.16"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.7", "versionEndExcluding": "6.2.3"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "4.7", "versionEndExcluding": "6.3"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/9dca64042d855a24b0bd81ce242e5dc7e939f6eb"}, {"url": "https://git.kernel.org/stable/c/2cfc00e974d75a3aa8155f2660f57d342e1f67ca"}, {"url": "https://git.kernel.org/stable/c/9ddc77eefb2a567b705c3c86ab2ddabe43cadf1b"}, {"url": "https://git.kernel.org/stable/c/283861a4c52c1ea4df3dd1b6fc75a50796ce3524"}], "title": "RDMA/cxgb4: Fix potential null-ptr-deref in pass_establish()", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}}, {"other": {"type": "ssvc", "content": {"id": "CVE-2023-53335", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-01-14T18:37:23.151348Z"}}}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-476", "description": "CWE-476 NULL Pointer Dereference"}]}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-01-14T18:43:00.832Z"}}]}}

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{"created": "2025-09-18T11:59:16.101992+00:00", "updated": "2025-09-18T11:59:16.102041+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}